%0 Journal Article %A Chiappinelli, Raffaele %T An estimate on the eigenvalues in bifurcation for gradient mappings %J Glasgow mathematical journal %D 1997 %P 211-216 %V 39 %N 2 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500032080/ %R 10.1017/S0017089500032080 %F 10_1017_S0017089500032080